A new species of Parastrigea (Digenea, Strigeidae) endoparasite of Buteogallus urubitinga (Aves, Accipitridae) from Argentina

Abstract

A new strigeid digenean, Parastrigea macrobursa n. sp., is described from specimens recovered from the small intestine of the great black-hawk, Buteogallus urubitinga (Aves: Accipitridae), from Formosa Province, Argentina. The new species is characterized by having a tulip-shaped forebody, a hindbody without neck region, a large, well delimited copulatory bursa, and a very deep genital atrium. Three species of Parastrigea share the shape of the copulatory bursa namely P. faini, P. astridae and P. tulipoides. Parastrigea faini and P. astridae differ mainly from the new species by having the forebody strongly divided in two regions and very developed lateral expansions, and Parastrigea tulipoides by having a long neck region and a longer body size. This new species represents the first record of a member of the genus Parastrigea Szidat, 1928 parasitizing birds from Argentina. A key is presented for the species currently recognized as valid in the genus.

A new species of Microtetrameres (Nematoda, Tetrameridae) parasitizing Buteogallus urubitinga (Aves, Accipitridae) from northeastern Argentina

“…The great black-hawk, Buteogallus urubitinga (Gmelin) (Accipitridae), is a diurnal bird of prey found in the open savanna and swamp edges of the Neotropical Region, from Mexico through Central America to Bolivia, Uruguay and central Argentina (Thiollay 1994 Lunaschi, 2011 andStrigea proteolitica Drago, Lunaschi andDraghi, 2014 (Digenea, Strigeidae) from Argentina (Travassos 1917, Vevers 1923, Dubois 1937, Pinto et al 1994, Drago and Lunaschi 2011, Drago et al 2014, Justo et al 2017. MARIANO DUEÑAS DÍAZ, FABIANA B. DRAGO and VERÓNICA NÚÑEZ Among nematodes, several members of the family Tetrameridae Travassos, 1914 are frequently found parasitizing birds.…”

Phylogenetic analyses based on molecular and morphological data reveal a new species ofStrigeaAbildgaard, 1790 (Digenea: Strigeidae) and taxonomic changes in strigeids infecting Neotropical birds of prey

“…This species was originally described as P. macrobursa by Drago & Lunaschi (2011) from the great black hawk ( B. urubitinga ) from Argentina. The specimens collected in the present study are similar to those of the original description by Drago & Lunaschi (2011).…”

“…This species was originally described as P. macrobursa by Drago & Lunaschi (2011) from the great black hawk ( B. urubitinga ) from Argentina. The specimens collected in the present study are similar to those of the original description by Drago & Lunaschi (2011). For instance, a forebody tulip-shaped and vitelline follicles distributed in two lateral expansions and a large well-delimited copulatory bursa, with a well-delimited genital cone and deep genital atrium.…”

“…After a careful morphological examination, the specimens were determined to correspond to an undescribed species of the genus Strigea . In addition, other strigeids collected from the intestine of the great black hawk ( Buteogallus urubitinga Gmelin) and common black hawk ( Buteogallus anthracinus Deepe) were identified as Parastrigea macrobursa Drago & Lunaschi, 2011, a species previously described in South America.…”

Digenean fauna in raptors from northeastern Argentina, with the description of a new species of Strigea (Digenea: Strigeidae)

“…Although 55 species of falconiform birds (39 Accipitridae, 15 Falconidae and 1 Pandionidae) inhabit Argentina Dubois, 1937), one of Dicrocoeliidae (Athesmia heterolecithodes [Braun, 1899]) and one of Stomylotrematidae (Stomylotrema vicarium Braun, 1901) have been recovered (Lunaschi et al 2007;Lunaschi & Drago 2009a, b;Drago & Lunaschi 2011a).…”